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Umbranus's user avatar
Umbranus's user avatar
Umbranus's user avatar
Umbranus
  • Member for 7 years, 8 months
  • Last seen more than 5 years ago
25 votes

Why would terrorists target terraforming?

19 votes

How to protect against killer insects?

18 votes

Nuclear power for nomads

17 votes

How to explain the use of high-tech bows instead of guns

15 votes

How to heat a windmill ? (Mechanical to thermal energy conversion)

10 votes

How do I make an alien technology feel alien?

9 votes

A power source that would last a REALLY long time

7 votes
Accepted

Combat in "age of sail" air ship

7 votes
Accepted

How would aluminum work as medieval armor?

5 votes
Accepted

How and why would an organism evolve BioSteel?

4 votes

How to heat a windmill ? (Mechanical to thermal energy conversion)

3 votes

The role of anthropomorphic foxes in a medieval army

2 votes

Telekinesis resistant locks

2 votes

Is there any advantage in a railgun/coilgun having multiple barrels?

2 votes

What crime would be illegal to uncover in medieval Europe?

2 votes

How a nuclear war in north hemisphere would affect the south hemisphere?

2 votes

What would happen to the economy if the United States suddenly emancipated all animals?

2 votes

Airship weapons, gliders

2 votes

Plausible plasma weapons?

1 vote

How Would Warfare Change if Everyone has Horses?

1 vote

How strong would a steam-powered prosthetic arm be?

1 vote

What would people with black eyes see?

0 votes

How can a world with an extremely thick, microbe-rich atmosphere avoid global warming problems?

0 votes

What materials in modern culture would be useless to an engineer ahead of his time?

0 votes

How to destroy evil incarnate?

0 votes

With current technology, genetically modified virus able to end mankind

0 votes

A modern-day scientist travels back in time to Nazi Germany

0 votes

How do churches make Christians believe in robotic archbishops?

0 votes

What kind of protection system could be used against railguns?

0 votes

What would be a viable alternative self defense ranged weapon that is not a firearm and also that are not primitive like a crossbow or a spear?